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Multiscale characterization of the hierarchical structure of Dynastes hercules elytra.

Authors
  • Roux-Pertus, Charles1
  • Oliviero, Erwan2
  • Viguier, Véronique3
  • Fernandez, Frédéric4
  • Maillot, Frédéric5
  • Ferry, Olivier6
  • Fleutot, Solenne7
  • Mano, João F8
  • Cleymand, Franck9
  • 1 Institut Jean Lamour, CNRS Université de Lorraine, Nancy, France. Electronic address: [email protected] , (France)
  • 2 Institut Charles Gerhardt Montpellier, CNRS Université de Montpellier, Montpellier, France; Microscopie Electronique et Analytique, Université de Montpellier, Montpellier, France. Electronic address: [email protected] , (France)
  • 3 Microscopie Electronique et Analytique, Université de Montpellier, Montpellier, France. Electronic address: [email protected] , (France)
  • 4 Microscopie Electronique et Analytique, Université de Montpellier, Montpellier, France. Electronic address: [email protected] , (France)
  • 5 Insectarium-Citadelle de Besançon, Besançon, France. Electronic address: [email protected] , (France)
  • 6 Institut Jean Lamour, CNRS Université de Lorraine, Nancy, France. , (France)
  • 7 Institut Jean Lamour, CNRS Université de Lorraine, Nancy, France. Electronic address: [email protected] , (France)
  • 8 Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal. Electronic address: [email protected] , (Portugal)
  • 9 Institut Jean Lamour, CNRS Université de Lorraine, Nancy, France. Electronic address: [email protected] , (France)
Type
Published Article
Journal
Micron (Oxford, England : 1993)
Publication Date
Oct 01, 2017
Volume
101
Pages
16–24
Identifiers
DOI: 10.1016/j.micron.2017.05.001
PMID: 28586698
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Beetle elytra are thickened forewings, they are lightweight and tough to protect the hindwings without hindering flight capacities. Dynastes hercules elytra are known for their hygrochromic properties. However, the whole structure of the elytron remains to be characterized. Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and to our knowledge for the first time X-Ray tomography were undertaken on adult male Dynastes hercules to characterize their multi-scale structure. Trabeculae present a periodic arrangement over a short distance. Two inferred models describe the heights of plies in endocuticles of dorsal and ventral cuticles. We hypothesize that this study could provide inspiration for biomimetic materials. Copyright © 2017 Elsevier Ltd. All rights reserved.

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